1.
The sum of the ages of three persons is 100 years. what will be the sum of their ages after 5 years:
2.
How many prime numbers are there in the first 150 natural numbers?
3.
What least number should be subtracted from 26492518 so that the resulting number is divisible by 3 but not by 9 ?
4.
Which digits have the same place value and face value in the number 4560923 ?
5.
Find the HCF of first sixteen even multiples of 17.
6.
0.17 ÷ a² = 17. Find 'a'.
7.
Two numbers are in the ratio 3 : 4. LCM of these numbers is 108. Is it possible to find the HCF of these numbers?
8.
What is the square root of 1444? If possible as a whole number.
9.
Of six consecutive numbers, the sum of first three is 27. what is the average of next three ?
10.
CP of 12 articles is equal to the SP of 15 articles. Find profit or loss percent.
11.
Multiply 2916372128 by 25 without the help of calculator.
12.
HCF of the group of given numbers is less than the smallest of these numbers.
13.
What is the maximum difference of two consecutive prime numbers up to 100 ?
15.
How many of the below given numbers are NOT PRIME NUMBER(S)? 2,3, 5,7, 11,13, 17,19, 23, 29,31, 37, 41,43, 47,53, 59,61, 67, 71,73, 79,83,89,97
16.
Which of the following numbers is not divisible by 18 ?
18.
What is difference between − 37 and 63?
20.
Which of the following numbers is not divisible by 18 ?
